Messages in this thread Patch in this message | | | From | Yan Markman <> | Subject | RE: [PATCH net-next 2/3] net: mvpp2: adjust gso stop wake thresholds | Date | Tue, 27 Feb 2018 17:48:44 +0000 |
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I will make this tomorrow. Thanks for attention! Best regards Yan Markman Tel. 05-44732819
-----Original Message----- From: Antoine Tenart [mailto:antoine.tenart@bootlin.com] Sent: Tuesday, February 27, 2018 7:14 PM To: David Miller <davem@davemloft.net> Cc: antoine.tenart@bootlin.com; Yan Markman <ymarkman@marvell.com>; mw@semihalf.com; Stefan Chulski <stefanc@marvell.com>; thomas.petazzoni@free-electrons.com; gregory.clement@free-electrons.com; miquel.raynal@free-electrons.com; Nadav Haklai <nadavh@marvell.com>; maxime.chevallier@bootlin.com; netdev@vger.kernel.org; linux-kernel@vger.kernel.org Subject: Re: [PATCH net-next 2/3] net: mvpp2: adjust gso stop wake thresholds
Hi David,
On Tue, Feb 27, 2018 at 11:13:06AM -0500, David Miller wrote: > From: Antoine Tenart <antoine.tenart@bootlin.com> > > From: Yan Markman <ymarkman@marvell.com> > > -#define MVPP2_MAX_TSO_SEGS 300 > > +#define MVPP2_MAX_TSO_SEGS 100 > > #define MVPP2_MAX_SKB_DESCS (MVPP2_MAX_TSO_SEGS * 2 + MAX_SKB_FRAGS) > > > > /* Dfault number of RXQs in use */ > > @@ -5810,7 +5810,7 @@ static int mvpp2_txq_init(struct mvpp2_port *port, > > txq_pcpu->tso_headers = NULL; > > > > txq_pcpu->stop_threshold = txq->size - MVPP2_MAX_SKB_DESCS; > > - txq_pcpu->wake_threshold = txq_pcpu->stop_threshold / 2; > > + txq_pcpu->wake_threshold = txq_pcpu->stop_threshold - 100; > > > > This number 100 is a magic constant. If it is related to > MVPP2_MAX_TSO_SEGS, please use that define. Otherwise define a new > one which is descriptive.
I agree. I'll ask Yan about it and update if possible.
Thanks! Antoine
-- Antoine Ténart, Bootlin (formerly Free Electrons) Embedded Linux and Kernel engineering https://bootlin.com
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